Ethanol was always a political thing, and not technical. It was passed because it would triple the price of corn.

Not just corn. Farmers would grow more corn in place of other plants reducing the supply, and shorter supply generally means higher prices, This is happening in India right now.

Fair play, also we need to stop using palm oil in food.

But how else am I going get orangutan flavour in my ice c̶r̶e̶a̶m̶ confection?

All water under the bridge. Ethanol is now a paying proposition. And it uses corn we used to dump.